Paint spray gun



FIG. 1 is a perspective view of a paint spray gun showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The evenly-dashed broken line showing of a paint spray gun in FIG. 7 is include for the purpose of illustrating portions of the article and forms no part of the claimed design. 

CLAIM The ornamental design for a paint spray gun, as shown and described. 